A pre-shipment inspection can be planned as a one-day visit when the agreed workload fits, but the duration must be confirmed for your lot. One inspector-day means one inspector working for one day; it is a workload unit, not a fixed completion promise. Our UTS service page states deployment within 48 hours of booking and report delivery within 24 hours. Those are separate from the time spent inspecting goods on site.[1]
We are UTS, a third-party inspection company covering product inspection, factory audit, supplier evaluation, and laboratory testing coordination. Below, we explain how to estimate the on-site workload, allow for booking and reporting, and prepare the information needed to confirm a date.
Inspection Time Is Not the Whole Timeline
| Stage | What it covers | Timing basis |
|---|---|---|
| Deployment | Booking to deployment for the visit | UTS publishes deployment within 48 hours of booking; confirm the visit date with our team.[1] |
| On-site inspection | Random selection, agreed checks, measurements, and records | Depends on the sampling plan, products, tests, packing, and access |
| Report delivery | Delivery of the inspection findings after the visit | UTS publishes a report turnaround within 24 hours.[1] |
For a hypothetical one-day visit, adding 48 hours for deployment, one day on site, and 24 hours for reporting gives about four calendar days. This is arithmetic for planning, not a published UTS end-to-end service commitment. Readiness, the confirmed appointment, and any separate testing must also fit your shipment cutoff.
When the Goods Are Ready for PSI
Our final random inspection (FRI), also called pre-shipment inspection, takes place when production is 100% complete and at least 80% of products are packed. Our service page identifies ANSI/ASQ Z1.4 and ISO 2859-1 as the sampling basis.[1] Confirm readiness for the inspection date; you do not need to wait until production is finished to discuss booking.
If the goods will not meet that threshold, contact our team to reconfirm the appointment and scope. Do not assume the original date still applies. An initial production inspection at about 5–10% produced is an earlier-stage visit.[2] A during-production inspection at about 30–50% finished and packed is also a separate service, not a shorter PSI.[3]
What Determines the On-Site Duration?
Start with the agreed sample and the work required on it, rather than dividing the shipment quantity by an assumed inspection speed. Random sampling supports a lot assessment; its main purpose is deciding whether a lot is likely acceptable, not measuring the exact quality of every unit.[4] ISO 2859-1 describes sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection.
| Workload factor | Why it affects duration | Information to provide |
|---|---|---|
| Sampling plan | More sampled units generally require more checking and recording | Lot quantity, inspection level, applicable plan, and acceptance criteria |
| Models and SKUs | Different versions may need separate identification, measurements, labels, and functions checked | Quantities by model, color, size, and destination version |
| Test requirements | A timed function cycle or detailed measurement takes longer than a visual check | Methods, test quantities, limits, equipment, and conditions |
| Packaging and codes | Opening cartons, checking assortments, scanning codes, and resealing add work | Packing list, artwork, code data, and agreed packing checks |
| Access and references | Unavailable goods or conflicting documents can interrupt the checks | Storage locations, carton access, and one approved reference set |
AQL and defect classifications belong to the acceptance criteria; they are not a direct conversion into inspection hours. Our team needs the complete sampling and test scope to assess the workload.
How Our Documented Inspection Process Helps You Plan
Our published FRI workflow shows what happens between booking and the report. We collect order details, product specifications, and the factory address; finalize the checklist with your requirements, AQL levels, and special testing needs; conduct random sampling and the agreed physical and visual checks; then provide a PDF report with photographs and measurement data.[1]
Use those stages to prepare the job: identify the goods and location, settle the checklist, make the goods available for selection, and allow time for evidence collection. This is our documented service process, not a measured productivity rate or a claim about a particular customer visit.
A Hypothetical Inspection-Time Calculation
The following example isolates one unit-check task at an assumed two minutes per sampled unit. It is not a UTS measured rate, a prescribed sample size, or the time for a complete inspection.
| Hypothetical sample | Time for the assumed task only | Still to allow for |
|---|---|---|
| 125 units | 250 minutes, or 4 hours 10 minutes | Selection, other tests, packing checks, photographs, and records |
| 200 units | 400 minutes, or 6 hours 40 minutes | The same additional work |
| 315 units | 630 minutes, or 10 hours 30 minutes | The same additional work |
The calculation shows why a larger sample or a slower test can outgrow a one-day plan. It does not establish the length of a UTS working day. The actual sample comes from the agreed plan, and the final duration must include all tasks, not just the two-minute example.
When More Inspector-Days May Be Needed
Discuss additional workload before fixing the visit date when the order contains many versions, lengthy function tests, detailed measurements, extensive packing checks, or goods at multiple locations. Separate inspection lots also need their own selection and assessment. A larger team may change elapsed time, but total inspector-days and calendar days are not interchangeable; confirm both with our team.
If every unit must be examined, our full inspection service has a different workload from statistical sampling. Neither the sample-based example above nor a one-day assumption should be applied to the full lot without assessing the scope.
Loading supervision is separate too. Our container loading supervision page describes a loading operation usually lasting three to four hours, with every carton counted. That is a loading reference, not the duration of product conformity checks.
What to Prepare Before the Visit
The following is general preparation guidance, not recommendations contained in an inspection report.
- Provide the factory address, intended inspection date, shipment cutoff, and finished and packed quantities by SKU.
- Confirm that the goods will meet the finished-and-packed threshold on the agreed date and identify any separate lots or storage locations.
- Provide one approved reference set: purchase order, specifications, tolerances, approved sample details, defect classifications, sampling plan, test instructions, artwork, code data, packing list, and shipping marks. Identify revisions and approval dates.
- Resolve conflicting specifications before the visit. Make all goods in the agreed sampling scope available; prepared display samples do not replace random selection.
- Arrange carton opening and resealing, handling support, and the equipment, power, and conditions required for agreed on-site tests.
Incomplete information or unavailable goods may require a revised appointment or scope. Ask our team to confirm the revised timing rather than assuming a new deployment deadline.
Barcode and QR-Code Checks Need a Defined Scope
Where scanning is in scope, we require 100% scanning success for the inspected barcode or QR-code objects, with decoded data matching the approved reference. Agree the inspected quantity, symbology, scanning device, and test conditions before the visit. This does not mean every code in the shipment has been scanned, nor does it promise readability on every later device.
Allow for both handling and scanning in the time estimate. A successful scan is also different from formal print-quality grading, which requires the applicable method and equipment; it should not be treated as an equivalent test.
Report Timing and What the Report Contains
Our FRI service page states that the detailed PDF report is delivered within 24 hours.[1] Our reports present actual findings only: the inspection scope, applicable requirements, sampled items, measurements, observations, test results, defects, and any checks that could not be completed. Any conformity result is assessed against the agreed requirements and sampling plan. The report does not contain recommendations, corrective-action plans, improvement plans, or shipment-release advice.
A sample-based result cannot prove that all unchecked goods match the sample, establish destination-market legal compliance, or replace laboratory testing or certification assessment. Shipment decisions remain with you or your expressly authorized decision-maker. ISO/IEC 17020 sets requirements for the competence, impartiality, and consistent operation of inspection bodies; citing it here is not a claim about a specific UTS accreditation scope.
Separate laboratory work has its own turnaround. Our laboratory testing coordination covers product-specific testing and document review; do not assume those results are included in the PSI report's 24-hour turnaround.
For linear barcode print-quality grading, ISO/IEC 15416:2025 provides measurement and evaluation methodology. It is not a blanket QR-code grading standard or the source of the inspected-code scanning-success requirement above.
How Much Time Should You Allow?
Ask us to confirm three items: the deployment date, the on-site inspector-days and elapsed visit duration, and the report delivery time. A one-day visit plus the published deployment and reporting intervals can illustrate an approximately four-day schedule, but it is not a universal PSI lead time. Give our team the sample scope, SKU breakdown, tests, readiness, and cutoff so the plan reflects your actual lot.
Planning a shipment with a tight cutoff? Send your product details and planned date, and our team will confirm the inspection scope and timing.
References
- UTS Final Random Inspection — readiness, sampling basis, documented workflow, deployment, and report turnaround.
- UTS Initial Production Inspection — early-production inspection stage.
- UTS During Production Inspection — mid-production inspection stage.
- NIST/SEMATECH e-Handbook — What Is Acceptance Sampling? — random selection and the purpose of lot assessment.
- ISO 2859-1 — AQL-indexed sampling schemes for lot-by-lot inspection.
- UTS Container Loading Supervision — loading duration and carton counting.
- ISO/IEC 17020 — requirements for bodies performing inspection.
- ISO/IEC 15416:2025 — print-quality measurement and evaluation for linear barcode symbols.
